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bnxt_en: Use bnxt_cp_ring_info struct pointer as parameter for RX path.

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In the RX code path, we current use the bnxt_napi struct pointer to
identify the associated RX/CP rings.  Change it to use the struct
bnxt_cp_ring_info pointer instead since there are now up to 2
CP rings per MSIX.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2018-10-14 07:02:55 -04:00 committed by David S. Miller
parent 7b3af4f75b
commit e44758b78a
2 changed files with 45 additions and 43 deletions
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69
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -807,11 +807,11 @@ static inline int bnxt_alloc_rx_page(struct bnxt *bp,
return 0;
}
static void bnxt_reuse_rx_agg_bufs(struct bnxt_napi *bnapi, u16 cp_cons,
static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
u32 agg_bufs)
{
struct bnxt_napi *bnapi = cpr->bnapi;
struct bnxt *bp = bnapi->bp;
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
u16 prod = rxr->rx_agg_prod;
u16 sw_prod = rxr->rx_sw_agg_prod;
@ -934,12 +934,13 @@ static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
return skb;
}
static struct sk_buff *bnxt_rx_pages(struct bnxt *bp, struct bnxt_napi *bnapi,
static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr,
struct sk_buff *skb, u16 cp_cons,
u32 agg_bufs)
{
struct bnxt_napi *bnapi = cpr->bnapi;
struct pci_dev *pdev = bp->pdev;
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
u16 prod = rxr->rx_agg_prod;
u32 i;
@ -986,7 +987,7 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp, struct bnxt_napi *bnapi,
* allocated already.
*/
rxr->rx_agg_prod = prod;
bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs - i);
bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs - i);
return NULL;
}
@ -1043,10 +1044,9 @@ static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data,
return skb;
}
static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_napi *bnapi,
static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
u32 *raw_cons, void *cmp)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct rx_cmp *rxcmp = cmp;
u32 tmp_raw_cons = *raw_cons;
u8 cmp_type, agg_bufs = 0;
@ -1172,11 +1172,11 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
cons_rx_buf->data = NULL;
}
static void bnxt_abort_tpa(struct bnxt *bp, struct bnxt_napi *bnapi,
u16 cp_cons, u32 agg_bufs)
static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
u32 agg_bufs)
{
if (agg_bufs)
bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
}
static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
@ -1370,13 +1370,13 @@ static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code)
}
static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
struct bnxt_napi *bnapi,
struct bnxt_cp_ring_info *cpr,
u32 *raw_cons,
struct rx_tpa_end_cmp *tpa_end,
struct rx_tpa_end_cmp_ext *tpa_end1,
u8 *event)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_napi *bnapi = cpr->bnapi;
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
u8 agg_id = TPA_END_AGG_ID(tpa_end);
u8 *data_ptr, agg_bufs;
@ -1388,7 +1388,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
void *data;
if (unlikely(bnapi->in_reset)) {
int rc = bnxt_discard_rx(bp, bnapi, raw_cons, tpa_end);
int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end);
if (rc < 0)
return ERR_PTR(-EBUSY);
@ -1414,7 +1414,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
}
if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) {
bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
if (agg_bufs > MAX_SKB_FRAGS)
netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
agg_bufs, (int)MAX_SKB_FRAGS);
@ -1424,7 +1424,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
if (len <= bp->rx_copy_thresh) {
skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
if (!skb) {
bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
return NULL;
}
} else {
@ -1433,7 +1433,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
if (!new_data) {
bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
return NULL;
}
@ -1448,7 +1448,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
if (!skb) {
kfree(data);
bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
return NULL;
}
skb_reserve(skb, bp->rx_offset);
@ -1456,7 +1456,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
}
if (agg_bufs) {
skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs);
if (!skb) {
/* Page reuse already handled by bnxt_rx_pages(). */
return NULL;
@ -1510,10 +1510,10 @@ static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi,
* -ENOMEM - packet aborted due to out of memory
* -EIO - packet aborted due to hw error indicated in BD
*/
static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
u8 *event)
static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
u32 *raw_cons, u8 *event)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_napi *bnapi = cpr->bnapi;
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
struct net_device *dev = bp->dev;
struct rx_cmp *rxcmp;
@ -1552,7 +1552,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
goto next_rx_no_prod_no_len;
} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
skb = bnxt_tpa_end(bp, bnapi, &tmp_raw_cons,
skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons,
(struct rx_tpa_end_cmp *)rxcmp,
(struct rx_tpa_end_cmp_ext *)rxcmp1, event);
@ -1573,7 +1573,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
data = rx_buf->data;
data_ptr = rx_buf->data_ptr;
if (unlikely(cons != rxr->rx_next_cons)) {
int rc1 = bnxt_discard_rx(bp, bnapi, raw_cons, rxcmp);
int rc1 = bnxt_discard_rx(bp, cpr, raw_cons, rxcmp);
bnxt_sched_reset(bp, rxr);
return rc1;
@ -1596,7 +1596,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
bnxt_reuse_rx_data(rxr, cons, data);
if (agg_bufs)
bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
rc = -EIO;
goto next_rx;
@ -1633,7 +1633,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
}
if (agg_bufs) {
skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs);
if (!skb) {
rc = -ENOMEM;
goto next_rx;
@ -1695,10 +1695,10 @@ next_rx_no_prod_no_len:
/* In netpoll mode, if we are using a combined completion ring, we need to
* discard the rx packets and recycle the buffers.
*/
static int bnxt_force_rx_discard(struct bnxt *bp, struct bnxt_napi *bnapi,
static int bnxt_force_rx_discard(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr,
u32 *raw_cons, u8 *event)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
u32 tmp_raw_cons = *raw_cons;
struct rx_cmp_ext *rxcmp1;
struct rx_cmp *rxcmp;
@ -1728,7 +1728,7 @@ static int bnxt_force_rx_discard(struct bnxt *bp, struct bnxt_napi *bnapi,
tpa_end1->rx_tpa_end_cmp_errors_v2 |=
cpu_to_le32(RX_TPA_END_CMP_ERRORS);
}
return bnxt_rx_pkt(bp, bnapi, raw_cons, event);
return bnxt_rx_pkt(bp, cpr, raw_cons, event);
}
#define BNXT_GET_EVENT_PORT(data) \
@ -1889,9 +1889,10 @@ static irqreturn_t bnxt_inta(int irq, void *dev_instance)
return IRQ_HANDLED;
}
static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
int budget)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_napi *bnapi = cpr->bnapi;
u32 raw_cons = cpr->cp_raw_cons;
u32 cons;
int tx_pkts = 0;
@ -1922,9 +1923,9 @@ static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
}
} else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
if (likely(budget))
rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event);
rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
else
rc = bnxt_force_rx_discard(bp, bnapi, &raw_cons,
rc = bnxt_force_rx_discard(bp, cpr, &raw_cons,
&event);
if (likely(rc >= 0))
rx_pkts += rc;
@ -2016,7 +2017,7 @@ static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget)
rxcmp1->rx_cmp_cfa_code_errors_v2 |=
cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);
rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event);
rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
if (likely(rc == -EIO) && budget)
rx_pkts++;
else if (rc == -EBUSY) /* partial completion */
@ -2056,7 +2057,7 @@ static int bnxt_poll(struct napi_struct *napi, int budget)
int work_done = 0;
while (1) {
work_done += bnxt_poll_work(bp, bnapi, budget - work_done);
work_done += bnxt_poll_work(bp, cpr, budget - work_done);
if (work_done >= budget) {
if (!budget)

19
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View File

@ -2498,11 +2498,11 @@ static int bnxt_hwrm_phy_loopback(struct bnxt *bp, bool enable, bool ext)
return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
}
static int bnxt_rx_loopback(struct bnxt *bp, struct bnxt_napi *bnapi,
static int bnxt_rx_loopback(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
u32 raw_cons, int pkt_size)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
struct bnxt_napi *bnapi = cpr->bnapi;
struct bnxt_rx_ring_info *rxr;
struct bnxt_sw_rx_bd *rx_buf;
struct rx_cmp *rxcmp;
u16 cp_cons, cons;
@ -2510,6 +2510,7 @@ static int bnxt_rx_loopback(struct bnxt *bp, struct bnxt_napi *bnapi,
u32 len;
int i;
rxr = bnapi->rx_ring;
cp_cons = RING_CMP(raw_cons);
rxcmp = (struct rx_cmp *)
&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
@ -2530,17 +2531,15 @@ static int bnxt_rx_loopback(struct bnxt *bp, struct bnxt_napi *bnapi,
return 0;
}
static int bnxt_poll_loopback(struct bnxt *bp, int pkt_size)
static int bnxt_poll_loopback(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
int pkt_size)
{
struct bnxt_napi *bnapi = bp->bnapi[0];
struct bnxt_cp_ring_info *cpr;
struct tx_cmp *txcmp;
int rc = -EIO;
u32 raw_cons;
u32 cons;
int i;
cpr = &bnapi->cp_ring;
raw_cons = cpr->cp_raw_cons;
for (i = 0; i < 200; i++) {
cons = RING_CMP(raw_cons);
@ -2556,7 +2555,7 @@ static int bnxt_poll_loopback(struct bnxt *bp, int pkt_size)
*/
dma_rmb();
if (TX_CMP_TYPE(txcmp) == CMP_TYPE_RX_L2_CMP) {
rc = bnxt_rx_loopback(bp, bnapi, raw_cons, pkt_size);
rc = bnxt_rx_loopback(bp, cpr, raw_cons, pkt_size);
raw_cons = NEXT_RAW_CMP(raw_cons);
raw_cons = NEXT_RAW_CMP(raw_cons);
break;
@ -2570,12 +2569,14 @@ static int bnxt_poll_loopback(struct bnxt *bp, int pkt_size)
static int bnxt_run_loopback(struct bnxt *bp)
{
struct bnxt_tx_ring_info *txr = &bp->tx_ring[0];
struct bnxt_cp_ring_info *cpr;
int pkt_size, i = 0;
struct sk_buff *skb;
dma_addr_t map;
u8 *data;
int rc;
cpr = &txr->bnapi->cp_ring;
pkt_size = min(bp->dev->mtu + ETH_HLEN, bp->rx_copy_thresh);
skb = netdev_alloc_skb(bp->dev, pkt_size);
if (!skb)
@ -2600,7 +2601,7 @@ static int bnxt_run_loopback(struct bnxt *bp)
wmb();
bnxt_db_write(bp, &txr->tx_db, txr->tx_prod);
rc = bnxt_poll_loopback(bp, pkt_size);
rc = bnxt_poll_loopback(bp, cpr, pkt_size);
dma_unmap_single(&bp->pdev->dev, map, pkt_size, PCI_DMA_TODEVICE);
dev_kfree_skb(skb);